Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
23005excellentexcellent11excellent
22005excellentexcellent11excellent
21005excellentexcellent11excellent
20005excellentexcellent11excellent
19005excellentexcellent11excellent
18005excellentexcellent11excellent
17005excellentexcellent11excellent
16005excellentexcellent11excellent
15005excellentexcellent11excellent
14005excellentexcellent11excellent
13005excellentexcellent11excellent
12005excellentexcellent11excellent
11005excellentexcellent11excellent
10004excellentexcellent11excellent
09004excellentexcellent11excellent
08004excellentexcellent11excellent
07004excellentexcellent11excellent
06004excellentexcellent11excellent
05004excellentexcellent11excellent
04004excellentexcellent11excellent
03004excellentexcellent21excellent
02004excellentexcellent21excellent
01004excellentexcellent21excellent
00004excellentexcellent21excellent